It's always a pain when you have an ice cold import in your hand but can't locate your bottle opener, but odds are that you can locate your dog (if you have one, of course). The makers of the Bark4Beer Collar ($15) know this as well, which is why they integrated a retractable bottle opener into this rugged black collar, ensuring that the key to frosty relief is never more than a shout away. [Thanks, Adam]